Gas-meter



(No Model.) 2 Sheets-Sheet 1.

A. LANGLAIS.

GAS METER.

No. 386,994. Patented July 31, 1888.

i w f JF J JLJLJf Il? 771! "7"' WL d QJ: l Q

J j, l gf a'JC 'ZZ T Z1 Z1 d, rl d,

g d l I t? w07/ 27C g3 I d Q e/ E E'Zl e/a/J l e?? 6?/ j 0 "Z a E aryl I 9 a g ci. @a i 2 Sheets-Sheet 2.

A. LANGLAIS.

GAS METER.

Patented July 31, 1888.

(No Model.)

UNITED STATES PATENT OEEICE.

ARCHIE LANGLAIS, OF CHICAGO, ILLINOIS.

GAS-METER.

SPECIFICATION forming part of Letters Patent. No. 386,994, dated July 3l. 1388- Application filed February 13, 1888. Serial No. 263,834. (No model.)

To all whom it may concern:

Beit known that I, ARcHiE LANGLAIS, of Chicago, Illinois, have invented certain new and useful Improvements in Gas-Meters, of which the following is a specification.

My invention relates to improvements in gas-meters in which a liquid-joiiit is einployed to connect the movable part of the expansible chamber with the relatively-stationary part thereof; and the object of my improvement is to simplify the construction and arrangement of the expansible chamber and its connection with the registering mechanism, thereby making a more compact and better apparatus than has heretofore been pro duced. The object is also to provide means for preventing the liquid from being spiltinto the expaiisible chamber by tipping the meter over or turning it upside down.

The invention is illustrated in the accompanying drawings, in which- Figure l is a rightside vertical section of a meter containing the invention, taken on the line x x of Fig. 8. Fig. 2 is a top view, the top plate of the outer casing being removed. Fig. 3 is a left-side transverse vertical section on line y y of Fig. 1. Fig. 4 is a horizontal section ou line z z of Fig. 3.

A is the outer casing, which is constructed of sheet metal and made airtight in the usual manner. The space inclosed by the casing is divided into three compartments, B B B2, by partitions a a. The compartment B has the valve-chambers C provided with sliding valves c c of the usual construction. D and D are the expansible chambers, which are located within the lower part of the compartments B B2. Each of these expansible chambers consists of an inverted cup, cl, the sides of which play in a recess or channel, '2, formed between the interior of the outer casing, A, and the exterior of an inner cup, e, which is of less diameter and height than the inverted cup and is attached to the bottom of said outer casing, so that any liquidas gl ycerine or mercury-poured into said compartments will sett-le in said channel and form a gas-tightjoint at the open end of said i11- verted cup, in which the sides of said cup can move as the expansible chamber is expanded and contracted in operation.

In orderto prevent the liquid from spilling, the inner vessel, e, is provided with a cover, e', which has an opening in the center, for a purpose hereinafter explained,\vliich is protected by a tube or neck, c2, connected to the cover, so as to lform a liquid-tight joint therewith, and having a flange, e, at the top adapted .to prevent the liquid from passing through said opening in the cover in case the meter 1s upset.

It is desirable to have the channel Eas nai'- row as possible. I have therefore made the cups without any projections at the sides for connecting guide-rods, and provided them each with a rod, F, which is rigidly attached thereto atf. The upper parts of these rods work in an opening in an arni or projection, f', and the lower parts in an opening through the flange c3 and cover e to guide the movement of the cups in operation. The openings in the cover and ange are protected by a tube, et, secured so as to prevent the liquid from going through if the meter were turned over. The ports through which the gas passes into and out of the compartments B B2 are provided with pendent tubes G, which are attached to the plate a around the ports, so as to prevent the liquid from passing into the valve-cliamber if the meter were inverted.

The liquid is thus confined within the conipartnients B B2 and the channels E at the bottom thereof when the meter is right side up, and will fiow back into said channels on righting the meter in case it is spilled by upsetting it. The cups d are provided with a stud, d', which extends through the plate, so as to project on both sides ofthe plate. This stud is located at the center of the cup and rigidly attached thereto, and to a projection on the inside of the cup there is hinged a rod, d2, and to the lower end of the rod is pivoted one end of a lever, d, which is fulcruined on a post, d, and weighted at the other end, so as to balance the cup, said rod working through the opening surrounded by the neck c2.

The mechanism in the compartment B, for operating the valves c c and the register, (not shown,) consists of the shafts H and H, connected by a Worin-gear, said latter shaft being operated by links h h,connecting its crank with the arms h of the rock-shafts I, all of which ICO are of the ordinary construction. Said shafts I are extended through stuffing-boxes supported on the plate a into the compartments B B2, Where they are supported by and journaled 1n a bar, I', attached to the partitions a and the side of the casing. 'Opposite to this bar is a rod, J. supported on and projecting from each side of the partition a. On this rod are placed sleeves K, provided with bell.- crank arms k k', to the latter of which are pivoted rods or links L, connected, also, with the studs d' of the expansible chamber,where by the vibrations of the latter impart a rocking movement to the sleeves K. The rocking movement is transmitted, by means of the arms 7c', through links L and arms l, to the shafts I, for the purpose of operating the register by the expanding and contracting of the expansible chambers.

The connections ofthe rod L and the rod d to the opposite ends of the stud d is by hinges set 1n intersecting planes, so that the iexion of said rods shall be through intersecting planes coincident with the axis of the stud. The op-l posite ends of the rods are thus permitted to move laterally in harmony with their leverconnections, and said two rods andstud, taken together, have substantially a rigid or indexible connection with the cup,and tend to steady it in its movrnent up and down.

The gas passes into the meter through the pipes M m, first to the valve-chambers, thence through ports controlled by thevalvesccalternately into chambers B D and B2 D, through the pipes G G, and thence out through the pipes m M to the burners, the valves operating in the usual manner to open and close the ports to said pipes G and G and to admit the gas from said chambers in each side of the meter to said pipe m.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a gas-meter constructed as shown, the combination, with the cups d of the expansible chamber, of the inner cups, e, provided with a cover, e, having an opening in the center provided with a neck, c, and flange e, as and for the purpose specified.

2. In a gas-meter of the construction slipwn, the cup d of the expansible chamber provided with a stud, d', in combination With the rods L and d, said rods being hinged to opposite ends of said stud, so as to be iiexible through intersecting planes coincident with said stud, and weighted levers di, as and for the purpose specified.

3. In a gas-meter constructed as shown and described, the cups d of the expansible chamber provided with a rod, F, rigidly attached atf and extended in opposite direction from said point, in combination with an arm, f', and the cover e'z and its ange provided with openings in which said rod can move to guide the movement of the cups, as specified.

4. In a gas-meter constructed as shown and described, the cups d of the expansible chamber balanced by a weight-pressed rod connected in the center and guided by a single rod rigidly attached to the top plate and sliding in openings above and below its point of attachment to the cup, in combination with links L, bell-crank sleeve K, provided With arms k It', links L', and arms l of the shafts I, as and for the purpose specified.

ARCHIE LANGLAIS.

Witnesses:

JNO. H. WHIPPLE, JAMES R. DEAN. 

